Charles smith



(No Model.)

o. SMITH.v DANDY ROLL POR USB IN PAPER MAKING.

Patented Nov. 9, 1886.

.l v. l

N4 PETERS. Phololilhug'lphul'. Washington. D. C4

UNITED STATES 'PATENT Trice.

CHARLES SMITH, OF BELLEVILLE, NEI/V JERSEY, ASSIGNOR TO THE EAST- W'OODVIRE MANUFACTURING COMPANY, OF SAME PLACE.

DANDY-ROLL FOR USE IN PAPER-MAKING@ SPECIFICATION forming part ofLetters Patent No. 352,493, dated November 9, 1886.

Application tiled June 25, 1886. Serial No. 206,183. (No model.)

the same, reference being h ad to the accompanying drawings,and toletters of reference marked thereon,which form a part of thisspecification.

Theobject of this invention is to prevent the frothy matter whichordinari] y Works th rough the meshes of the wire covering of thedandyroll, fromthe imperfectly-formed paper upon which said roll isworking,from hardening and thus clogging the meshes, so that thefunctions of the roll are materially interfered with, the

cleansing of the roll often madenecessary, andv the manufacture of papergreatly retarded.

A further object is to relieve the paper impressed by the dandy-rollfrom undue pressure, and to secure amore perfect and even or regularimpression.

The invention consisis in the arrangements and combinations of parts,substantially as will be hereinafter set forth, and finally be embodiedin the clauses of the claim.

Referring to the accompanying drawings,in which like letters indicatecorresponding parts in each of the several figures, Figure l is a frontelevation of the dandy-roll and accompanying mechanism, the former beingbroken away to show a certain pipe therein. Fig. 2 is asectional viewtaken through line Fig. 3 is a face view of a bearing for said pipe, asection being taken through the pipe at line y. Fig. 4. is a section onlinezthrough the pipe,to show a face view of a certain collar by meansof which the dandy-roll is prevented from moving longitudinally on theshaft or pipe. Fig. 5 illustrates the construction of the said shalt orpipe, on an enlarged scale; and Fig. 6 illustrates a modiedconstruction, which will be duly explained.

In said drawings, A indicates the dandy-roll, which is of any ordinaryconstruction, but is preferably made in accordance with the inventionset forth in Letters Patent of the United States issued August 12,l884,and numbered 303,401, to which reference is had, that a perfectunderstanding of the general construction of the roll may be gained.Said dandy-roll is carried by a fixed shaft, b, which is connected withasupply, ci, and extends longitudinally through the roll, beingpreferably square or quadranguiar and provided with a series ofperforations, by which the water is evenly distributed along theinterior of the roll.

I prefer to form the perforations (marked b b in Fig. 5) at the underside of the shaft or pipe, as by that means the water or spray fallsonly on the roll as it (said roll) engages the paper on the wire-cloth,the water thus being prevented from being forced through the meshes ofthe roll-covering in drops, which, falling on the soft paper, areliableto spot the same, and thus impair its value.

To relieve the paper from an excess of weight,which would tend to crushit, I have formed the shaft b quadrangular, as indicated in Figs. 2, 3,and-l, though it may be of other shapes, and on the same have arranged aslotted journal block or bearing, c, upon which the dandy-roll mayrevolve, under the influence of the paper f and cloth g of the machine,in the usual manner. The slot in said bearing may be provided withsprings, as the one in Fig. 6, to prevent undue freedom or looseness ofmotion. By this construction it will be evident that the said wire-clothand paper thereon do not sustain the weight of the shaft b and the watertherein, but only the rol1,whicl1 is free to adjust itself to the cloth,and thus bears evenly thereon, so that a more perfect impression issecured throughout the length of the paper.

By means of the adjustable collars or stops e e the dandy-roll may bemoved laterally in either direction on the shaft, and be then secured inplace in accordance with the position of the Wire-cloth thereunder.

The tloW of water to the perforated shaft b is' controlled by asuitablevalve, n, Fig. l, which 'may be of any ordinary construction.

Departures from the constructions above described may be made withoutavoiding the scope of this inventionfas, for example, the

slot may be transferred to some other part, and the shaft under somecircumstances may be round in section.

Having thus described the invention, what claim as new is* 1. Incombination with a dandy-roll, apipe, b, therein, having perforations onthe under side only, substantially as and for the purposes set forth.

2. The combination of the dandy-roll and a shaft supplying Water to saidroll, said roll having a vertically-movable relation to said shaft,substantially as set forth.

3. In combination, the tubular and perfo# rated shaft, and dandy-rollhaving a movement on said shaft in a direction at angles thereto,substantially as described.

4. The combination, with the dandy-roll, of the perforated shaft andslotted journal, said parts being arranged and adapted to operatesubstantially as set forth.

5. The combination, with the fixed quadrangular shaft, slottedjournal-bearing, and dandy-roll, al1 said parts being arranged andadapted to operate substantially as and for the purposes set forth.

6. In combination with a fixed perforated pipe connected with a suitablesupply-pipe having a valve to control the flow of water therethrough,the perforations being on the under side of said pipe only, adandy-roll, and a slotted journal-bearing, c, said parts being arrangedand adapted to operate substantially as set forth.

In testimony that I clailn the foregoing I have hereunto set my handthis 22d day of June, 1886. Y

CHARLES SMITH.

Witnesses:

CHARLES H. PELL, OSCAR A. MICHEL.

